A304075 - OEIS

A304075 as a simple table

n	a(n)
0	1
1	7
2	25
3	55
4	91
5	139
6	211
7	289
8	367
9	463
10	583
11	721
12	847
13	979
14	1153
15	1333
16	1501
17	1687
18	1909
19	2149
20	2365
21	2587
22	2875
23	3157
24	3403
25	3679
26	4003
27	4351
28	4657
29	4963
30	5347
31	5731
32	6073
33	6439
34	6865
35	7315
36	7711
37	8107
38	8605
39	9091
40	9511
41	9967
42	10495
43	11065
44	11551
45	12019

[1,7,25,55,91,139,211,289,367,463,583,721,847,979, 1153,1333,1501,1687,1909,2149,2365,2587,2875,3157, 3403,3679,4003,4351,4657,4963,5347,5731,6073,6439, 6865,7315,7711,8107,8605,9091,9511,9967,10495, 11065,11551,12019]